EP0071186A1 - Eclateur à plusieurs paires d'électrodes en parallèle - Google Patents

Eclateur à plusieurs paires d'électrodes en parallèle Download PDF

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Publication number
EP0071186A1
EP0071186A1 EP82106608A EP82106608A EP0071186A1 EP 0071186 A1 EP0071186 A1 EP 0071186A1 EP 82106608 A EP82106608 A EP 82106608A EP 82106608 A EP82106608 A EP 82106608A EP 0071186 A1 EP0071186 A1 EP 0071186A1
Authority
EP
European Patent Office
Prior art keywords
electrodes
row
spark gap
source
rows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82106608A
Other languages
German (de)
English (en)
French (fr)
Inventor
Olivier De Witte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of EP0071186A1 publication Critical patent/EP0071186A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T2/00—Spark gaps comprising auxiliary triggering means
    • H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap

Definitions

  • the present invention relates to a spark gap with several pairs of electrodes in parallel.
  • a spark gap is a device comprising two electrodes separated by a dielectric such as a gas.
  • spark gaps are used in particular to cause, by short circuit of a capacitor, an electric excitation discharge between the anode and the cathode of certain gas lasers.
  • a multiple spark gap or spark gap rail is preferably used, comprising several pairs of electrodes connected in parallel. This arrangement has the advantage of reducing the impedance of the discharge and increasing the life of the electrodes of the device.
  • the object of the present invention is to overcome this drawback.
  • a parallelepipedal insulating box 1 comprises a working chamber 2 provided with an opening 13, and a supply chamber 3 provided with an opening 14.
  • the chambers 2 and 3 are in communication with each other by a parallelepidedic channel 4 disposed longitudinally in the housing 1 along a plane 5.
  • Electrodes which can be made of brass, copper or stainless steel. These electrodes are grouped in two rows arranged on either side of the plane 5, parallel to this plane, each electrode of a row being opposite an electrode of the other row. A pair of opposite electrodes 7 and 10 is visible in Figure 1.
  • the successive pairs of electrodes are regularly spaced apart.
  • the electrodes of one row such as 6, 7 and 8 are fixed to the end of a metal plate 9 parallel to the plane 5, while those of the other row are fixed to the end of another metal plate 11 parallel to the plane 5.
  • the plates 9 and 11 pass through the wall of the housing 1 and are respectively connected to the two terminals of an electrical voltage source 12.
  • An insulated conductor 15 is placed in the chamber 2 along the two rows of electrodes.
  • the conductor 15 is constituted by a nickel wire surrounded by a glass tube, the internal volume of this tube may also contain a conductive solution. Wire is connected to one terminal of an electrical pulse source 16, the other terminal of this source being connected to the plate 11.
  • the air passes through the channel 4 so as to pass between the different pairs of electrodes and then escapes from the chamber 2 through the opening 13.
  • the distance between the different pairs of electrodes is adjusted so that the potential difference between the opposite electrodes is less than the ignition voltage.
  • This potential difference can be, for example, equal to 2/3 of the ignition voltage.
  • the two rows of electrodes are located in a plane 17 perpendicular to the plane 5, and the conductive wire 15 is disposed substantially in the plane 5, downstream from the plane 17 in the direction of the gas flow.
  • the amplitude of the high voltage pulses delivered by the source 16 is such that there is a light discharge in a ring around the insulator of the insulated conductor 15 at each pulse. This discharge creates between the electrodes an ionization of the gas in circulation, causing the ignition of ten simultaneous electric arcs between the two rows of electrodes.
  • the circulation of gas facilitates the extinction of electric arcs between two successive ignitions.
  • the plates 9 and 11 can be the plates of a capacitor (for example of a capacitor having as dielectric of deionized water).
  • the source 12 is then a high voltage pulse generator periodically charging the capacitor.
  • the delivery of the pulses from the generator 16 is adjusted with a certain delay with respect to those of the generator 12, so that the ionization produced by the conductor 15 occurs when the difference in voltage between electrodes is maximum.
  • the power of the generator 16 is negligible compared to that of the generator 12.

Landscapes

  • Lasers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Led Devices (AREA)
EP82106608A 1981-07-28 1982-07-22 Eclateur à plusieurs paires d'électrodes en parallèle Withdrawn EP0071186A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8114619 1981-07-28
FR8114619A FR2510813A1 (fr) 1981-07-28 1981-07-28 Eclateur a plusieurs paires d'electrodes en parallele

Publications (1)

Publication Number Publication Date
EP0071186A1 true EP0071186A1 (fr) 1983-02-09

Family

ID=9260916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106608A Withdrawn EP0071186A1 (fr) 1981-07-28 1982-07-22 Eclateur à plusieurs paires d'électrodes en parallèle

Country Status (4)

Country Link
US (1) US4485334A (https=)
EP (1) EP0071186A1 (https=)
JP (1) JPS5828186A (https=)
FR (1) FR2510813A1 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241893A (ja) * 1987-03-30 1988-10-07 株式会社東芝 スパ−クギヤツプスイツチ
FR2855662B1 (fr) * 2003-06-02 2005-07-15 I T H P P Eclateur, et notamment eclateur a haute tension
US8618436B2 (en) 2006-07-14 2013-12-31 Ceramatec, Inc. Apparatus and method of oxidation utilizing a gliding electric arc
JP5180236B2 (ja) 2007-02-23 2013-04-10 セラマテック・インク 滑動電気アーク用セラミック電極
DE102014107409A1 (de) * 2014-05-26 2015-11-26 Phoenix Contact Gmbh & Co. Kg Überspannungsableiter
CN113075580B (zh) * 2021-02-26 2024-06-28 中国电力科学研究院有限公司 接地故障间歇性电弧模拟装置及电弧处置设备验证方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012492A (en) * 1978-01-16 1979-07-25 Hughes Aircraft Co Multipactor switch
US4227234A (en) * 1978-07-03 1980-10-07 Xerox Corporation Corona charging element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU641569A1 (ru) * 1976-06-16 1979-01-05 Предприятие П/Я В-6681 Многоканальный разр дник
US4114114A (en) * 1977-03-03 1978-09-12 Gte Sylvania Incorporated Apparatus and method for initiating electrical discharge in a laser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012492A (en) * 1978-01-16 1979-07-25 Hughes Aircraft Co Multipactor switch
US4227234A (en) * 1978-07-03 1980-10-07 Xerox Corporation Corona charging element

Also Published As

Publication number Publication date
FR2510813B1 (https=) 1984-04-06
JPS5828186A (ja) 1983-02-19
FR2510813A1 (fr) 1983-02-04
US4485334A (en) 1984-11-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19830712

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19841206

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DE WITTE, OLIVIER